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Re: Mac Program Support [message #45267 is a reply to message #45265]

Wed, 24 August 2005 14:09

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Wed, 24 Aug 2005 12:52:37 -0600, David Fanning wrote:

> Folks,
>
> Since this has turned into a Mac support help-line, I have a question.
> Person in my IDL class today has a new Mac running IDL 6.2. She crashed in
> a widget event handler and couldn't get out.
>
> I said "Type RETALL". She did, and she *still* couldn't get out of the
> event handler code. We had to recompile the program itself before we could
> get back to the main IDL level. Is this normal? Did I miss something? I
> didn't have time to stop and ponder this, but it was weird.

Not a Mac-only issue, but if you have a big backlog of the same events
which triggered the crash, all queued up in the event system (e.g. a
bug in your motion event handling, just as you've scribbled all around
a draw widget), then RETALL will simply allow the next event to come
through, and trigger the bug again, putting you right back where you
started (or so it would appear). Once you fix the bug and re-compile
the program, the events flow through freely. But, sometimes you just
want to get the heck out and do something else though. I use the
following snippet (actually bound to a key in IDLWAVE) to first clear
all events from the queue, and then RETALL:

__wa=widget_info(/managed)
for i=0,n_elements(__wa)-1 do widget_control,__wa[i], /clear_events
retall

JD

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[Message index]

		Re: Mac Program Support By: K. Bowman on Fri, 26 August 2005 07:31
		Re: Mac Program Support By: David Fanning on Fri, 26 August 2005 07:18
		Re: Mac Program Support By: K. Bowman on Fri, 26 August 2005 07:00
		Re: Mac Program Support By: Haje Korth on Fri, 26 August 2005 05:31
		Re: Mac Program Support By: George N. White III on Fri, 26 August 2005 04:37
		Re: Mac Program Support By: jm on Fri, 26 August 2005 03:21
		Re: Mac Program Support By: David Fanning on Thu, 25 August 2005 18:27
		Re: Mac Program Support By: JD Smith on Thu, 25 August 2005 14:28
		Re: Mac Program Support By: David Fanning on Wed, 24 August 2005 19:37
		Re: Mac Program Support By: JD Smith on Wed, 24 August 2005 14:09
		Re: Mac Program Support By: Henry on Fri, 26 August 2005 10:13

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